FWIW - I find them more comfortable to walk around in than boat-shoes..

The inner sole sounds like a good idea. I wish I read this a couple of hours ago. I just ordered some red suede RL driving shoes ($75). Wasn't to sure about red, until I saw bold colored driving shoes in Leon Magazine

Aside from wear issues, I can't imagine a shoe like this would be healthy. They provide little support for the bottom of the foot, and almost zero lateral support. As factorial says, they may be as comfortable as a leather soled blucher, but at least that shoe 1) offers some support in the footbed and 2) has some stiffness to the leather to support the foot and ankle.

Don't get me wrong, I think they're fine for driving or a summer party, but I wouldn't wear these for any length of time.

But guys - I don't get the point of wearing driving shoes for driving. What's the point of them looking colourful or stylish? Is it about just the moment when you step out of your car? Or is it just for you to feel good whilst driving? Who can see your feet when you drive??